I have a Model 70 in 300 WSM that I am building up as a long range rifle and I can't find many options for a DBM system for it. The only thing I have found is the CDI and I have heard that the receiver needs to be modified to accept AICS mags. What I am wondering is, can I pick up a DBM system off of an FN SPR that I have heard is close to the same gun, and retrofit it to fit my Model 70? And if not, do I have any other options? Thanks.